Added setters for FieldWeights, MatchMode, and SortMode.  Added flag to get() to make it respect sort order.
Add ability to return model objects by passing a modelname property (instead of a table) in the index config.
Merge pull request #4 from levi730/addsorting

Added setters for FieldWeights, MatchMode, and SortMode.  Added respect sort order, and ability to return model objects.